Someone in row B of the Film Four screen last night was puffing away at an electronic fag, which glowed green each time! Carried on through the titles of Sin City but then he/she seemed to stop, thankfully.

As an e-cig user and FF alumnus, I think good protocol is to hold the e-cig so the palm of one's hand covers the light. This way, everyone is happy. I have used my e-cig in cinemas including at FF for the last three years and it has never caused any problems. Apologies for this person's bad conduct.

I never supported the smoking ban. Electronic cigs are the best thing to happen for all smokers and non-smokers who aren't affilated with big pharma, the World Health Organistaion, ASH or any other authoritarian, nannying group of nothin-better-to-do-busybodies.

But, like the clowns that can't survive less than 2 hours in a cinema without looking at a phone, if you can't survive without a hit of nicotine, additive drug or not, you really should get you head examined.

I think that's the critical point. There doesn't need to be a special rule for e-cigs, they must just fit into the category of good manners. Once the lights go down we all bend every effort to be as unobtrusive as possible. We don't blame people for the occasional cough or sneeze, that's human biology, but lights must be covered and there's no actual reason for an e-cig to have a visible glow. I'm not familiar with the technology, but presumably it's possible to choose flavours that don't smell as well?